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摘要: package LeetCode_1689 /** * 1689. Partitioning Into Minimum Number Of Deci-Binary Numbers * https://leetcode.com/problems/partitioning-into-minimum-nu 阅读全文
posted @ 2020-12-13 17:55 johnny_zhao 阅读(118) 评论(0) 推荐(0) 编辑
摘要: package LeetCode_1688 /** * 1688. Count of Matches in Tournament https://leetcode.com/problems/count-of-matches-in-tournament/ You are given an intege 阅读全文
posted @ 2020-12-13 12:26 johnny_zhao 阅读(133) 评论(0) 推荐(0) 编辑
摘要: Zygote:用于孵化进程,system_server创建进程是通过socket向Zygote进程发起请求; installd:用于安装App的守护进程,上层的PackageManagerService很多实最终都是交给它来完成; lmkd:lowmemorykiller的守护进程,Java层Low 阅读全文
posted @ 2020-12-12 16:58 johnny_zhao 阅读(108) 评论(0) 推荐(0) 编辑
摘要: Android系统启动过程是由Boot Loader引导开机,然后依次进入 -> Kernel -> Native -> Framework -> App,接下来简要说说每个过程: Loader层 Boot ROM:当手机处于关机状态时,长按Power键开机,引导心片开始从固化在ROM里的预设代码开 阅读全文
posted @ 2020-12-12 15:40 johnny_zhao 阅读(365) 评论(0) 推荐(0) 编辑
摘要: 学习入口 阅读全文
posted @ 2020-12-12 15:06 johnny_zhao 阅读(61) 评论(0) 推荐(0) 编辑
摘要: 解决方案见官方文档: https://developer.android.google.cn/about/versions/pie/android-9.0-changes-28 Apache HTTP 客户端弃用 在 Android 6.0 中,我们取消了对 Apache HTTP 客户端的支持。 阅读全文
posted @ 2020-12-06 11:12 johnny_zhao 阅读(214) 评论(0) 推荐(0) 编辑
摘要: package LeetCode_1668 /** * 1668. Maximum Repeating Substring * https://leetcode.com/problems/maximum-repeating-substring/ * For a string sequence, a 阅读全文
posted @ 2020-12-03 17:06 johnny_zhao 阅读(146) 评论(0) 推荐(0) 编辑
摘要: package LeetCode_1673 import java.util.* /** * 1673. Find the Most Competitive Subsequence * https://leetcode.com/problems/find-the-most-competitive-s 阅读全文
posted @ 2020-12-03 10:27 johnny_zhao 阅读(172) 评论(0) 推荐(0) 编辑
摘要: package LeetCode_1032 /** * 1032. Stream of Characters * https://leetcode.com/problems/stream-of-characters/ * Implement the StreamChecker class as fo 阅读全文
posted @ 2020-12-02 17:51 johnny_zhao 阅读(99) 评论(0) 推荐(0) 编辑
摘要: package LeetCode_824 /** * 824. Goat Latin * https://leetcode.com/problems/goat-latin/ * A sentence S is given, composed of words separated by spaces. 阅读全文
posted @ 2020-12-01 23:13 johnny_zhao 阅读(70) 评论(0) 推荐(0) 编辑
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